add example websocket C++ server snake which supports basic cobra ops (publish and subscribe without stream sql

ws/snake/IXAppConfig.h

@@ -0,0 +1,46 @@
+/*
+ *  IXAppConfig.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "nlohmann/json.hpp"
+
+namespace snake
+{
+    struct AppConfig
+    {
+        // Server
+        std::string hostname;
+        int port;
+
+        // Redis
+        std::vector<std::string> redisHosts;
+        int redisPort;
+        std::string redisPassword;
+
+        // AppKeys
+        nlohmann::json apps;
+
+        // Misc
+        bool verbose;
+    };
+
+    bool isAppKeyValid(
+        const AppConfig& appConfig,
+        std::string appkey);
+
+    std::string getRoleSecret(
+        const AppConfig& appConfig,
+        std::string appkey,
+        std::string role);
+
+    std::string generateNonce();
+
+    void dumpConfig(const AppConfig& appConfig);
+}